{"id":7490,"date":"2016-10-31T01:55:22","date_gmt":"2016-10-31T00:55:22","guid":{"rendered":"https:\/\/www.rawpowergroup.it\/2016\/10\/31\/riduzione-torque-ripple-in-motori-a-riluttanza\/"},"modified":"2025-02-05T18:45:44","modified_gmt":"2025-02-05T17:45:44","slug":"torque-ripple-reduction-of-reluctance-machines","status":"publish","type":"post","link":"https:\/\/www.rawpowergroup.it\/en\/2016\/10\/31\/torque-ripple-reduction-of-reluctance-machines\/","title":{"rendered":"Torque ripple reduction of reluctance machines"},"content":{"rendered":"[vc_row type=”full_width_background” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” bg_color=”#ffffff” scene_position=”center” top_padding=”30″ bottom_padding=”10″ text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”padding-2-percent” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h3″ text_color=”#d02721″ line_reveal_by_space_text_effect=”default” content_alignment=”default” mobile_content_alignment=”inherit” link_target=”_self” text_direction=”default” text_content=”Torque ripple reduction of reluctance machines via Asymmetric Flux Barriers Design.”][\/split_line_heading][\/vc_column][\/vc_row][vc_row type=”full_width_background” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” bg_color=”#ffffff” scene_position=”center” top_padding=”40″ text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_column_text css=”” text_direction=”default”]\n
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This activity proposes a\u00a0rotor flux barrier design for pure<\/strong>\u00a0and assisted<\/strong>\u00a0reluctance electrical machines which can reduce torque oscillations due to torque ripple and cogging torque.<\/p>\n

The intended solution consists of designing asymmetric rotor flux barriers by calculating the asymmetry angle via analytical calculus based on the most critical characteristics harmonic orders on the output torque.<\/p>\n

This method was validated via extensive 2-D finite element simulation analysis on three different slot-pole configurations of a pure reluctance machine and assisted reluctance ones.<\/p>\n

Simulation results showed\u00a0a significant torque oscillation reduction given the same rated torque<\/strong>; the obtained reductions are nearly 92% and 70% for the pure reluctance and assisted reluctance machines, respectively.<\/p>\n

An additional advantage was the\u00a0improvement of Back-Electromotive Force waveforms<\/strong>.<\/p>\n<\/div>\n<\/div>\n

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